105 lines
4.4 KiB
C#
105 lines
4.4 KiB
C#
// Copyright 2025 Code Philosophy
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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using dnlib.DotNet;
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using HybridCLR;
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using Obfuz;
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using Obfuz.Settings;
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using Obfuz.Unity;
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using System;
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using System.Collections.Generic;
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using System.IO;
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using UnityEditor;
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using UnityEngine;
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namespace Obfuz4HybridCLR
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{
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public static class ObfuscateUtil
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{
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public static string PackageName { get; } = "com.code-philosophy.obfuz4hybridclr";
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public static string TemplatePathInPackage => $"Packages/{PackageName}/Templates~";
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public static bool AreSameDirectory(string path1, string path2)
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{
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try
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{
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var dir1 = new DirectoryInfo(path1);
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var dir2 = new DirectoryInfo(path2);
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return dir1.FullName.TrimEnd('\\') == dir2.FullName.TrimEnd('\\');
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}
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catch
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{
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return false;
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}
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}
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public static void ObfuscateHotUpdateAssemblies(BuildTarget target, string outputDir)
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{
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string hotUpdateDllPath = SettingsUtil.GetHotUpdateDllsOutputDirByTarget(target);
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AssemblySettings assemblySettings = ObfuzSettings.Instance.assemblySettings;
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ObfuscationProcess.ValidateReferences(hotUpdateDllPath, new HashSet<string>(assemblySettings.GetAssembliesToObfuscate()), new HashSet<string>(assemblySettings.GetObfuscationRelativeAssemblyNames()));
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var assemblySearchPaths = new List<string>
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{
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hotUpdateDllPath,
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};
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if (AreSameDirectory(hotUpdateDllPath, outputDir))
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{
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throw new Exception($"hotUpdateDllPath:{hotUpdateDllPath} can't be same to outputDir:{outputDir}");
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}
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Obfuscate(target, assemblySearchPaths, outputDir);
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foreach (string hotUpdateAssemblyName in SettingsUtil.HotUpdateAssemblyNamesExcludePreserved)
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{
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string srcFile = $"{hotUpdateDllPath}/{hotUpdateAssemblyName}.dll";
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string dstFile = $"{outputDir}/{hotUpdateAssemblyName}.dll";
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// only copy non obfuscated assemblies
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if (File.Exists(srcFile) && !File.Exists(dstFile))
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{
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File.Copy(srcFile, dstFile, true);
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Debug.Log($"[CompileAndObfuscateDll] Copy nonObfuscated assembly {srcFile} to {dstFile}");
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}
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}
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}
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public static void Obfuscate(BuildTarget target, List<string> assemblySearchPaths, string obfuscatedAssemblyOutputPath)
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{
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var obfuzSettings = ObfuzSettings.Instance;
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var assemblySearchDirs = assemblySearchPaths;
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ObfuscatorBuilder builder = ObfuscatorBuilder.FromObfuzSettings(obfuzSettings, target, true);
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builder.InsertTopPriorityAssemblySearchPaths(assemblySearchDirs);
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builder.CoreSettingsFacade.obfuscatedAssemblyOutputPath = obfuscatedAssemblyOutputPath;
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foreach (var assemblySearchDir in builder.CoreSettingsFacade.assemblySearchPaths)
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{
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if (AreSameDirectory(assemblySearchDir, obfuscatedAssemblyOutputPath))
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{
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throw new Exception($"assemblySearchDir:{assemblySearchDir} can't be same to ObfuscatedAssemblyOutputPath:{obfuscatedAssemblyOutputPath}");
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}
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}
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Obfuscator obfuz = builder.Build();
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obfuz.Run();
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}
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}
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}
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